Sony A7R IV vs Sony T900

Here, we are contrasting the Sony A7R IV versus Sony T900, former being a Pro Mirrorless while the other is a Ultracompact and both of them are offered by Sony. There is a considerable difference between the sensor resolutions of the A7R IV (61MP) and T900 (12MP) and the A7R IV (Full frame) and T900 (1/2.3") posses different sensor sizing.

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The A7R IV was announced 10 years later than the T900 and that is quite a large difference as far as tech is concerned. The two cameras feature different body design with the Sony A7R IV being a SLR-style mirrorless camera and the Sony T900 being a Ultracompact camera.

Before going right into a full comparison, here is a brief summary of how the A7R IV grades vs the T900 when considering portability, imaging, features and an overall rating.

Below is a sample of the gallery pictures for Sony Alpha A7R IV & Sony Cyber-shot DSC-T900. The whole galleries are available at Sony A7R IV Gallery & Sony T900 Gallery.

If you're aiming to carry your camera regularly, you'll need to factor its weight and size. The Sony A7R IV provides physical measurements of 129mm x 96mm x 78mm (5.1" x 3.8" x 3.1") accompanied by a weight of 665 grams (1.47 lbs) and the Sony T900 has specifications of 98mm x 58mm x 16mm (3.9" x 2.3" x 0.6") and a weight of 143 grams (0.32 lbs).

Analyze the Sony A7R IV versus Sony T900 in our newest Camera & Lens Size Comparison Tool.

Remember, the weight of an ILC will differ depending on the lens you have at that moment. Following is a front view measurement comparison of the A7R IV versus the T900.

Looking at size and weight, the portability score of the A7R IV and T900 is 62 and 96 respectively.

Generally, it is very hard to visualize the contrast between sensor sizing purely by reading through specs. The graphic here will provide you a greater sense of the sensor sizing in the A7R IV and T900.

All in all, each of these cameras feature different resolutions and different sensor sizing. The A7R IV having a larger sensor is going to make getting shallower DOF less difficult and the Sony A7R IV will resolve more detail with its extra 49MP. Greater resolution will also allow you to crop photos way more aggressively. The more modern A7R IV provides a benefit in sensor innovation.